Description
In the Linux kernel, the following vulnerability has been resolved: vmci: Prevent the dispatching of uninitialized payloads The reproducer executes the host's unlocked_ioctl call in two different tasks. When init_context fails, the struct vmci_event_ctx is not fully initialized when executing vmci_datagram_dispatch() to send events to all vm contexts. This affects the datagram taken from the datagram queue of its context by another task, because the datagram payload is not initialized according to the size payload_size, which causes the kernel data to leak to the user space. Before dispatching the datagram, and before setting the payload content, explicitly set the payload content to 0 to avoid data leakage caused by incomplete payload initialization.
INFO
Published Date :
2025-08-19T17:03:53.978Z
Last Modified :
2025-08-19T17:03:53.978Z
Source :
Linux
AFFECTED PRODUCTS
The following products are affected by CVE-2025-38611 vulnerability.
No data.
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-38611.
